are from the latest technologically innovative range of Oakley Goggles with the new Oakley switchlock technology for quick changes of lenses. To anyone familiar with the Oakley sports sunglasses range this superb locking mechanism enables the wearer to switch the lens with a minimum of fuss and effort and this is particularly useful for goggles due to the quickly changing light conditions on the mountains. Spare lenses are supplied as standard and a case. The fit is for medium to large sized heads and fits under a helmet or without. Anti-fogging is of course built in and the straps are perfectly designed to keep the goggles snug and comfortable.